pungi/tests/test_arguments.py

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import mock
import unittest
import six
from tests.helpers import load_bin
cli = load_bin("pungi-koji")
class PungiKojiTestCase(unittest.TestCase):
@mock.patch('sys.argv', new=['prog', '--version'])
@mock.patch('sys.stderr', new_callable=six.StringIO)
@mock.patch('sys.stdout', new_callable=six.StringIO)
@mock.patch('pungi_cli_fake_pungi-koji.get_full_version', return_value='a-b-c.111')
def test_version(self, get_full_version, stdout, stderr):
with self.assertRaises(SystemExit):
cli.main()
# Python 2.7 prints the version to stderr, 3.4+ to stdout.
if six.PY3:
self.assertMultiLineEqual(stdout.getvalue(), 'a-b-c.111\n')
else:
self.assertMultiLineEqual(stderr.getvalue(), 'a-b-c.111\n')